The site is opusfived.com, and Opus 5 is probably the worst so far at doing this.
I dunno, in my experience it's often overly-narrow, sometimes jumping through all kinds of hoops to preserve some edge-case behaviour that doesn't matter because I didn't mention it could be changed.
Experiences vary, yes.
But you can see in this thread that folks definitely have experienced this.
This is exactly the experience I have with Opus 5. Opus 4.6 is better, Flable 5.1 much better. But Opus 5 is infuriating.